Fuck Buttons may be right up your alley. Tarot Sport, their second album, was released in 2009 and I prefer it to the debut. Lots of feedback, lots of dissonance, electronics.
HEALTH is a more standard band (by which I mean drums, guitars, length of songs) but their sound is pretty abrasive, pretty powerful, and pretty different. Check out the video for We Are Water (youtube link, but still kinda NSFW), which was discussed around the Dope a couple times.
I’ll throw Salem in because 1.) they’re dark and weird, 2.) I really like them, and 3.) I already gave you two decent recs. These guys (and a girl) may have more in common with Lady Gaga (or Britney Spears - here’s their “cover” of 'Til the World Ends - again, it’s not overtly obscene but still somewhat NSFW) than I’d like to admit, but I also don’t think anyone is making music quite like them. Here’s a fan video for my favorite song by them, King Night (you know what? Don’t watch this at work either. NSFW)
Hope you like at least something here. The band names link to their respective AllMusic entries so you can read more about them and view the various discographies for yourself.